FlakM

Setting up qemu VM using nix flakes

Did you know that it is rather easy to setup a VM to test your NixOs configuration?

Create simple flake:

# flake.nix
{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

azagniotov

Create beautiful REST API docs authored in Markdown

• Adopted from: https://stubby4j.com/docs/admin_portal.html
• Inspired by Swagger API docs style & structure: https://petstore.swagger.io/#/pet

---

Creating new/overwriting existing stubs & proxy configs

tadfisher

{ lib
, stdenv
, jdk
, gradle
, mavenRepo
}:

stdenv.mkDerivation {
  pname = "built-with-gradle";
  version = "0.0";

oxalica

{
  inputs = {
    nixpkgs.url = github:nixos/nixpkgs/nixos-unstable;
    flake-utils.url = github:numtide/flake-utils;
    rust-overlay.url = github:oxalica/rust-overlay;
  };

  outputs = { nixpkgs, flake-utils, rust-overlay, ... }:
    flake-utils.lib.eachSystem ["x86_64-linux"] (system: let
      pkgs = import nixpkgs {

fospathi

⚠️ This discussion applies to version 1.13 (released 2019) of the Go language.

Why are Go's identical errors not equal?

Or, more precisely, why are two separate but otherwise seemingly identical errors created by Go's errors.New function not equal according to the == operator?

Consider the output of the following small program (Go Playground link) which compares Go's error values for equality:

package main

xeoncross

# Sample from @citizen428 https://dev.to/citizen428/comment/6cmh
FROM golang:alpine as build
RUN apk add --no-cache ca-certificates
WORKDIR /build
ADD . .
RUN CGO_ENABLED=0 GOOS=linux \
    go build -ldflags '-extldflags "-static"' -o app

FROM scratch
COPY --from=build /etc/ssl/certs/ca-certificates.crt \

TheAngryByrd

namespace fsharp_websocket



module WebsocketHelpers =
    open System
    open System.Net.WebSockets
    open System.Threading
    open Hopac
    let readMessage buffer messageType (stream : #IO.Stream) (socket : WebSocket) =  job {

CalamarBicefalo

import org.springframework.boot.web.client.RestTemplateBuilder
import org.springframework.http.HttpEntity
import org.springframework.http.HttpHeaders
import org.springframework.http.HttpRequest
import org.springframework.http.MediaType
import org.springframework.http.client.ClientHttpRequestExecution
import org.springframework.http.client.ClientHttpRequestInterceptor
import org.springframework.http.client.ClientHttpResponse
import org.springframework.util.Assert
import org.springframework.util.Base64Utils

isaacs

# Hello, and welcome to makefile basics.
#
# You will learn why `make` is so great, and why, despite its "weird" syntax,
# it is actually a highly expressive, efficient, and powerful way to build
# programs.
#
# Once you're done here, go to
# http://www.gnu.org/software/make/manual/make.html
# to learn SOOOO much more.

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD